The record of how the product's signing, provisioning and infrastructure keys were retired at end of security support: which keys, when, how they were destroyed or archived, and who witnessed it.
Record or register Work product in the Chip and product security lifecycle
It proves that keys which could still sign firmware or provision devices are no longer usable by anyone. Retired keys left in backups or equipment can later be misused to sign malicious updates for devices still in the field.
The full lifecycle detail, with its charts, flows, tables and every section, is for registered members. Registration is free and takes a minute. You come back to this page afterwards.